Bag coupling



1947- D. c. HOLLISTER 2, 32, 7

BAG COUPLING Filed Nov. 11, 1944 nwmvrox Jada 5: #0221522 Qther and further objects of the in ling from the present invention and the purview Patented Dec. 9, 1947 2,432,197 aea mm Donald A C. Hollister, Grosse LP-Oil'ltfl, ltlich assignor to' Eureka) Williams Corporation; a corporation of Michigan 4Qlaims. (class-e) Ihisinvention relates to suctioncleaners and h Pa ula eferenc t a R wlan ambien e r n e'm m an which t e .dir 9. 99;- ing bag thereof is detachably coupled "tojthe dis- 'chargequtletof the cleaner casing.

" .1 rinci ect o thein entp ar i .pwy g i V Anew and m rov u o c eane A novel and efficient arrangement for quickly detachablyconnecting thedirt collecting'jbagfof f anged the aner wi i edisqhare .o tlet' rep I ti on will b app e .f o th io' lorw neide cupt e i n claims and, will be understood by referenceto the the wall and forming -a part of the-fastening means. r

" ;'An annular bag coupling member 22 -formed of plastic or other surname material has a passage 5 'thereitliroiigjli 'whichTis adapted tobe connected w t the discharge outlet 1'63 The bag coupling manta; 2 2 has 2 which is'proviae with a e tih uous'grooveo'i enamel 26 in which a gasket '0 se i i ii meri iber" z'af'cir resilient material is arthe sealing member 28- projecting outwardly beyondthe face 24* of the coupling member fiendbemg cooperable with theface o'f'the w n u; das is estatnsha seal therewith between {the discharge outlet 1 6" land" the passageway accompanying drawings,'of which there is one l i thebaigcouplingfrrieinberjflf of the appended claims.

In the drawings Fig. 1 is a side elevational view of a cleaner embodying the invention;

Fig. 2 is an enlarged fragmentary View, partially in section, illustrating certain details thereof;

Fig. 3 is an elevational View of the face of the bag coupling member;

Fig. 4 is a fragmentary plan view, partially in section, of the coupling arrangement with the 35 suction cleaner embodying the invention and 40 which comprises a wheeled casing l0 having a pivoted handle l2 and a dirt collecting bag I4. The casing includes, as is common in the art, a nozzle mouth presented toward the surface covering to be cleaned and suction creating means including a discharge outlet [6 formed in a fiat wall l8 at the rear of the cleaner and through which outlet dirt laden air is discharged into -Tlicoupling member 22 'is"provided with sock- 58 30 which fastenihgeiemgrits' 32' ar' erranged, u'eh fastenin 'ele'ir'ints *cdmp'ris'ing'" a spring, catch 'for' reeeivirig the ball "head of the fasteningelerrientfidaifd coo erating" therewith to "retard I thefcouplirfg me'rnber -22*;in assembled irelatioii with thj eisenarge dunet of; the cleaner. fE'ach fastening elemerififl may comprise a plate seedredtd tl' 'cc'jiipling memberfifbyfineans'"of serews'smndtavme a"'pai'r-'bf": "osed' fingers 36 'bet'wee'rfwhich" 'the"-bal'lhead as msertea, such fingers being arranged so as to bear against the underside of the ball head thereby to hold the elements 20' and 32 together. The spring fingers 36 are constructed so as to yield sulficiently, particularly when the coupling member is rocked about one edge thereof, so as to permit the separation of the coupling member 22 from the discharge outlet of the cleaner.

In order to apply a separating force to the coupling member 22, the same is provided with a flange or rim 40 along its upper edge so that by pushing thereagainst and away from the casing of the cleaner, suficient pressure may be exerted on the spring fingers 36 so as to cause the same to yield enough to slide over the ball-headed end of the pins 20.

The coupling member 22 projects through an opening in the bag and is clamped therein, and

a mufiler 44 may be mounted on the rear end of the coupling element 20.

With this arrangement the coupling member 24 may be readily snapped 0n the cleaner or separated therefrom in a most convenient fashthe bag [4 which functions to separate the dirt ion The fastening elements 20, 32 should have from such air.

The wall IS in which the outlet I5 is formed is provided with ball-headed fastening pins 20, actually two in number, one on each side of the sufficient holding ability when assembled to prevent the accidental displacement of the bag l4.

While I have illustrated and described a preferred embodiment of my invention, it is underopening l6, such pins projecting rearwardly from stood that this is capable of modification and I 3 therefore do not wish to be limited to the precise details set forth but desire to avail myself of such changes and alterations which fall within the purview of the following claims.

I claim:

1. In a suction cleaner, a casing having a fiat wall with a discharge outlet therein, fastening pins projecting from said wall adjacent said outlet, an annular bag coupling member having a passage therethrough adapted to b connected with said discharge outlet, said bag coupling,

member having a gasket outwardly of said passage for cooperation with said wall outwardly of said outlet for establishing a seal between said coupling member and wall. said coupling member having sockets with spring fastening elements recessed therein for receiving said fastening pins in snap on pry off relationship for holding said coupling member assembled. to said casing, said fastening pins and sockets being arranged within the confines of said gasket.

2. In a suction cleaner, a casing having a fiat wall with a discharge outlet therein, fastening pins projecting from said wall on opposite sides of said outlet, an annular bag coupling member having a passage therethrough adapted to be connected with said discharge outlet, said bag coupling member having a gasket outwardl of said passage for cooperation with said wall outwardly of said outlet for establishing a seal between said coupling member and wall, said coupling member having, outwardly of said passage, sockets with spring fastening elements recessed therein for receiving said fastening pins in snap on pry off relationship for holding said coupling member assembled to said casing, and said coupling member having a flange forming a means by which pressure may be exerted on said coupling member for prying off the same from said casing.

3. In a suction cleaner, a casing having a wall with a discharge outlet therein, fastening pins projecting from said wall adjacent said outlet and in the direction of air flow from said outlet, an annular bag coupling member having a passage therethrough adapted to be connected in alignment with said discharge outlet, said coupling member having sockets with spring fastening elements recessed therein for receiving said fastening pins for holding said coupling 5 member assembled in snap on pry 01f relationship to said casing, said fastening pins being received in said socket by movement of said coupling member in a direction opposite to the flow of air from said outlet, said fastening pins and fastening elements being constructed and arranged so as not to form a part of the air conducting passage provided by said outlet and said coupling member.

4. In a suction cleaner, a casing having a wall with a discharge outlet therein, fastening pins projecting from said wall adjacent said outlet and in the direction of air flow from said outlet, an annular bag coupling member having a passage therethrough adapted to be connected with said discharge outlet, said coupling member having socket recesses with spring fastening elements therein for receiving said fastening pins for helding said coupling member assembled to said casing in snap on pry ofi relationship, said fastening pins being received in said socket by movement of said coupling member in a direction opposite to the flow of air from said outlet, said fastening pins and fastening elements being arranged at the sides of said outlet and passage, and said coupling member having a flange along the top thereof forming a means by which pressure may be exerted on said coupling member for prying off the same from said casing.

DONALD C. HOLLIS'IER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

